International Research Journal of Education and Technology

This study examines how riblet textures affect a particular airfoil's aerodynamic performance. Riblets are tiny, micro-structured patterns on a surface that are known to improve flow stability and minimize drag by managing turbulent boundary layers. The study examines how various riblet geometries—such as height, spacing, and orientation—affect an airfoil's lift and drag properties under various flow circumstances. The airflow over a selected airfoil with riblet textures is modeled using computational fluid dynamics (CFD) simulations, and its performance is compared to a baseline with a smooth surface. The study investigates the effects of riblet shapes on important aerodynamic characteristics such boundary layer behavior, pressure distribution, and lift-to-drag ratio. Results indicate that optimized riblet patterns can significantly improve the aerodynamic efficiency of the airfoil, leading to reductions in drag and improved overall performance. This investigation provides valuable insights into the potential of riblet textures for enhancing the design of high-performance airfoils in various engineering applications, including aviation and wind energy systems. This work models the airflow over an airfoil with different riblet patterns through a thorough investigation utilizing computational fluid dynamics (CFD) simulations. The main objective is to assess the impact of various riblet parameters, such as riblet height, spacing, and orientation, on the aerodynamic performance of the airfoil in both subsonic and transonic flow scenarios. To evaluate the performance gains by applying riblet textures, simulations are compared to a baseline smooth airfoil surface.

Keywords:Riblets,computational

fluidynamics(CFD),airfoil, aerodynamic performance.